Non-ST Elevated Myocardial Infarction

**Definition:** A myocardial infarction that does not produce elevations in the ST segments of the ELECTROCARDIOGRAM. ST segment elevation of the ECG is often used in determining the treatment protocol (see also ST Elevation Myocardial Infarction).

**Tree numbers:** - C14.280.647.500.469 - C14.907.585.500.656 - C23.550.513.355.750.469 - C23.550.717.489.750.469

**Synonyms:** - NSTEMI - Non-ST-Elevation Myocardial Infarction